What is the name of the 1981 international bestseller written by the co-presenter of an event organised by Northern Telecom in which Professor Nicholas Negroponte's 'trading places' idea was renamed the 'Negroponte Switch'? 
Wealth and Poverty
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Negroponte switch
4851713
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Negroponte switch
4851713
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Negroponte switch
4851713
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George Gilder
1280878
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George Gilder
1280878